64800568897 has 8 divisors (see below), whose sum is σ = 67675268160. Its totient is φ = 61930643280.

The previous prime is 64800568867. The next prime is 64800568901. The reversal of 64800568897 is 79886500846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64800568897 - 2¹¹ = 64800566849 is a prime.

It is a super-2 number, since 2×64800568897² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64800568837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165647 + ... + 1219972.

It is an arithmetic number, because the mean of its divisors is an integer number (8459408520).

Almost surely, 2^64800568897 is an apocalyptic number.

It is an amenable number.

64800568897 is a deficient number, since it is larger than the sum of its proper divisors (2874699263).

64800568897 is a wasteful number, since it uses less digits than its factorization.

64800568897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386823.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 64800568897 in words is "sixty-four billion, eight hundred million, five hundred sixty-eight thousand, eight hundred ninety-seven".